ENFORCEMENT OF TSM PROJECTS

Transportation system management (TSM) strategies introduced on California freeways in recent years have included ramp metering, preferential lanes for high-occupancy vehicles, and bypass lanes for buses and carpools at metered ramps. Several factors have frustrated efforts to enforce the traffic laws that accompany these strategies; these include personnel limitations, enforcement priorities, public hostility, confusion, and physical constraints imposed by the geometry and design of specific projects. As a consequence, violations have increased on several projects. This paper covers the first six months of an ongoing two-year study designed to measure and evaluate the effect of different enforcement options, engineering features, and educational programs on violation rates for various TSM freeway strategies and to trace the resulting impact of these violation rates on safety, freeway performance, and public attitudes. During this six-month period, statistics were assembled to describe violation rates, enforcement levels, and operating performance on current and past California projects; drivers were surveyed; and different levels and combinations of routine and special enforcement activities were tested on a variety of TSM projects. Violation rates were measured before, during, and after the assignment of highway patrol officers to enforce specific projects. This paper documents current violation rates, sketches profiles of violator behavior prior to special enforcement activities, outlines the preliminary results of the first wave of special enforcement, and documents the results of surveys designed to test the attitudes of drivers toward violators, enforcement, and the TSM projects themselves. (Author)

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1981/816/816-009.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=ENFORCEMENT+OF+TSM+PROJECTS&author=J.+Billheimer&publication_year=1981
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309032571
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Traffic Law Enforcement. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Billheimer, John W
• Conference:
  • 60th Annual Meeting of the Transportation Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1981-1-12 to 1981-1-16
• Publication Date: 1981

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 58-65
• Monograph Title: Transportation system management, parking, enforcement and other issues
• Serial:
  • Transportation Research Record
  • Issue Number: 816
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Attitudes; Buses; Carpools; Drivers; Freeways; High occupancy vehicle lanes; High occupancy vehicles; Ramp metering; Reaction time; Traffic lanes; Traffic law enforcement; Traffic violators; Transportation system management
• Uncontrolled Terms: Driver reaction
• Geographic Terms: California
• Old TRIS Terms: Reserved lanes
• Subject Areas: Highways; Operations and Traffic Management; Public Transportation; Safety and Human Factors; Security and Emergencies; I73: Traffic Control;

Filing Info

• Accession Number: 00345951
• Record Type: Publication
• ISBN: 0309032571
• Files: TRIS, TRB
• Created Date: Feb 27 1982 12:00AM